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package controlapi
import (
"context"
"github.com/moby/swarmkit/v2/api"
"github.com/moby/swarmkit/v2/api/naming"
"github.com/moby/swarmkit/v2/manager/orchestrator"
"github.com/moby/swarmkit/v2/manager/state/store"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
)
// GetTask returns a Task given a TaskID.
// - Returns `InvalidArgument` if TaskID is not provided.
// - Returns `NotFound` if the Task is not found.
func (s *Server) GetTask(ctx context.Context, request *api.GetTaskRequest) (*api.GetTaskResponse, error) {
if request.TaskID == "" {
return nil, status.Errorf(codes.InvalidArgument, errInvalidArgument.Error())
}
var task *api.Task
s.store.View(func(tx store.ReadTx) {
task = store.GetTask(tx, request.TaskID)
})
if task == nil {
return nil, status.Errorf(codes.NotFound, "task %s not found", request.TaskID)
}
return &api.GetTaskResponse{
Task: task,
}, nil
}
// RemoveTask removes a Task referenced by TaskID.
// - Returns `InvalidArgument` if TaskID is not provided.
// - Returns `NotFound` if the Task is not found.
// - Returns an error if the deletion fails.
func (s *Server) RemoveTask(ctx context.Context, request *api.RemoveTaskRequest) (*api.RemoveTaskResponse, error) {
if request.TaskID == "" {
return nil, status.Errorf(codes.InvalidArgument, errInvalidArgument.Error())
}
err := s.store.Update(func(tx store.Tx) error {
return store.DeleteTask(tx, request.TaskID)
})
if err != nil {
if err == store.ErrNotExist {
return nil, status.Errorf(codes.NotFound, "task %s not found", request.TaskID)
}
return nil, err
}
return &api.RemoveTaskResponse{}, nil
}
func filterTasks(candidates []*api.Task, filters ...func(*api.Task) bool) []*api.Task {
result := []*api.Task{}
for _, c := range candidates {
match := true
for _, f := range filters {
if !f(c) {
match = false
break
}
}
if match {
result = append(result, c)
}
}
return result
}
// ListTasks returns a list of all tasks.
func (s *Server) ListTasks(ctx context.Context, request *api.ListTasksRequest) (*api.ListTasksResponse, error) {
var (
tasks []*api.Task
err error
)
s.store.View(func(tx store.ReadTx) {
switch {
case request.Filters != nil && len(request.Filters.Names) > 0:
tasks, err = store.FindTasks(tx, buildFilters(store.ByName, request.Filters.Names))
case request.Filters != nil && len(request.Filters.NamePrefixes) > 0:
tasks, err = store.FindTasks(tx, buildFilters(store.ByNamePrefix, request.Filters.NamePrefixes))
case request.Filters != nil && len(request.Filters.IDPrefixes) > 0:
tasks, err = store.FindTasks(tx, buildFilters(store.ByIDPrefix, request.Filters.IDPrefixes))
case request.Filters != nil && len(request.Filters.ServiceIDs) > 0:
tasks, err = store.FindTasks(tx, buildFilters(store.ByServiceID, request.Filters.ServiceIDs))
case request.Filters != nil && len(request.Filters.Runtimes) > 0:
tasks, err = store.FindTasks(tx, buildFilters(store.ByRuntime, request.Filters.Runtimes))
case request.Filters != nil && len(request.Filters.NodeIDs) > 0:
tasks, err = store.FindTasks(tx, buildFilters(store.ByNodeID, request.Filters.NodeIDs))
case request.Filters != nil && len(request.Filters.DesiredStates) > 0:
filters := make([]store.By, 0, len(request.Filters.DesiredStates))
for _, v := range request.Filters.DesiredStates {
filters = append(filters, store.ByDesiredState(v))
}
tasks, err = store.FindTasks(tx, store.Or(filters...))
default:
tasks, err = store.FindTasks(tx, store.All)
}
if err != nil || request.Filters == nil {
return
}
tasks = filterTasks(tasks,
func(e *api.Task) bool {
return filterContains(naming.Task(e), request.Filters.Names)
},
func(e *api.Task) bool {
return filterContainsPrefix(naming.Task(e), request.Filters.NamePrefixes)
},
func(e *api.Task) bool {
return filterContainsPrefix(e.ID, request.Filters.IDPrefixes)
},
func(e *api.Task) bool {
return filterMatchLabels(e.ServiceAnnotations.Labels, request.Filters.Labels)
},
func(e *api.Task) bool {
return filterContains(e.ServiceID, request.Filters.ServiceIDs)
},
func(e *api.Task) bool {
return filterContains(e.NodeID, request.Filters.NodeIDs)
},
func(e *api.Task) bool {
if len(request.Filters.Runtimes) == 0 {
return true
}
r, err := naming.Runtime(e.Spec)
if err != nil {
return false
}
return filterContains(r, request.Filters.Runtimes)
},
func(e *api.Task) bool {
if len(request.Filters.DesiredStates) == 0 {
return true
}
for _, c := range request.Filters.DesiredStates {
if c == e.DesiredState {
return true
}
}
return false
},
func(e *api.Task) bool {
if !request.Filters.UpToDate {
return true
}
service := store.GetService(tx, e.ServiceID)
if service == nil {
return false
}
n := store.GetNode(tx, e.NodeID)
return !orchestrator.IsTaskDirty(service, e, n)
},
)
})
if err != nil {
return nil, err
}
return &api.ListTasksResponse{
Tasks: tasks,
}, nil
}
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